2014
DOI: 10.1155/2014/874824
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Protective Role of Catechin and Quercetin in Sodium Benzoate-Induced Lipid Peroxidation and the Antioxidant System in Human ErythrocytesIn Vitro

Abstract: The aim of this study was to evaluate the protective effect of catechin and quercetin in sodium benzoate- (SB-) induced oxidative stress in human erythrocytes in vitro. For this, the effects of SB (6.25, 12.5, 25, 50, and 100 μg/mL), catechin (10 μM), and quercetin (10 μM) on lipid peroxidation (LPO) and the activities of SOD, CAT, GPx, and GST were studied. Significantly higher LPO and lower activities of antioxidant enzymes were observed with the increasing concentrations of SB. Catechin or quercetin protect… Show more

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Cited by 37 publications
(20 citation statements)
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“…Both resveratrol and quercetin are able to reduce ROS concentrations in different tissues [ 44 – 46 ], and their dietary supplementation increases CAT, SOD, and GPX expression [ 47 49 ]. Thanks to its high concentrations of polyphenols, RW consumption reduces LDL oxidation and prevents endothelial dysfunction [ 23 ].…”
Section: Discussionmentioning
confidence: 99%
“…Both resveratrol and quercetin are able to reduce ROS concentrations in different tissues [ 44 – 46 ], and their dietary supplementation increases CAT, SOD, and GPX expression [ 47 49 ]. Thanks to its high concentrations of polyphenols, RW consumption reduces LDL oxidation and prevents endothelial dysfunction [ 23 ].…”
Section: Discussionmentioning
confidence: 99%
“…These observations could explain findings of this study that revealed significant accumulation of elastic fibers around the bronchiole, walls of the alveoli, and wall of the congested blood vessel together with marked increase in the alveolar wall thickness in lung tissues of DENPs exposed rat group. These findings could also be attributed to activation of immune cells by reactive oxygen species (ROS) and reactive nitrogen species (RNS) which initiate pulmonary fibrosis as proved in the previous study conducted by Yetuk et al [28]. One of the key inducers of inflammatory responses is NFK-B (26).…”
Section: Discussionmentioning
confidence: 83%
“…As an inducer of ROS generation in PBMCs culture, hydrogen peroxide was used in the concentration of 1.0 mM. For the experiments, in vitro effective doses of free radical scavengers according to data from published reports were utilized: N-acetyl-cysteine (NAC) 30 nM [51], caffeic acid (30 µg/mL) [52,53], p-coumaric acid (160 µg/mL) [54], gallic acid (70 µg/mL) [55], quercetin (33.8 µg/mL) [56,57], ascorbic acid (80 µg/mL) [58,59], lipoic acid (10.3 µg/mL) [60], polydatin (10 µg/mL) [61], and tocopherol (Vitamin E) (115 µg/mL) [62,63]. The EACA was used in the same concentration as for the main experiments (50 ng/mL) with radiation.…”
Section: Tests For Free Radical Scavenging Activitymentioning
confidence: 99%